Omron FB LIBRARY -, Startup Manual

Page: 26 / 162

2-1. Hardware Setup
2-1-1. Master Unit Hardware Setup
Indicators
Unit No. Switch
Sets the unit No. of the DeviceNet unit on the PLC as a one-digit hexadecimal value.
Node Address Switches
Set the node address as two-digit decimal value.
DTP Switch
The pins have the following functions: Each pin (Sw 1 to 4) sets following functions.
Pins 1 and 2: Baud rate
Pin 3: Continue/Stop communications for error (when used as a master).
Pin 4: Hold/Clear I/O for communications error (when used as a slave).
Communications Connector
Connect the network communications to this connector.
The communications power for this unit is also supplied through this connector.
A parallel connector with screws (XW4B-05C1-H1-D) is provided for node connection.
(1) Set the master unit number (Unit Number Setup Switch)
In this example, unit number is set to 1.
The unit number must not overlap that of other CPU Bus unit connected to
the same PLC.
(2) Set the master node address.
In this example, node address is set to 63.
The node address must not overlap that of other node (slave) in the
network.
Do not use 0.
(3) Set up the communication speed.
1 2 3
4
ON
In this example, switches 1 and 2 are set to OFF.
Set the communication rate of the master unit to 125K bps.
ON
ON
OFF
OFF
2 1
Not allowed ON
50 K bit/s OFF
250 K bit/s ON
125 K bit/s OFF
Baud Rate
Pin
0 to F Setup Range
1-digit Hexadecimal Number Setup Method
1 to 63 Setup Range
2-digit Decimal Number Setup Method
2-2 DeviceNet Slave (DRT2 Series)
DRT2-
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